MORELLE, Quentin; SENANI, Sophie; NICOLE, Lionel; GAUDON, Manuel; ROZES, Laurence; LE BOURHIS, Eric

doi:10.1016/j.matlet.2019.06.045

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MORELLE, Quentin
Laboratoire de Chimie de la Matière Condensée de Paris [LCMCP]
Matériaux Hybrides et Procédés [LCMCP-MHP ]

SENANI, Sophie
Airbus Group Innovations [Suresnes]

NICOLE, Lionel
Laboratoire de Chimie de la Matière Condensée de Paris [LCMCP]
Matériaux Hybrides et Procédés [LCMCP-MHP ]

Langue

Article de revue

Ce document a été publié dans

Materials Letters. 2019-10, vol. 253, p. 140-143

Elsevier

Résumé en anglais

Structural Health Monitoring (SHM) is a major issue in the aeronautic field, especially for impact detection on composite materials which can be time consuming. Impact-sensitive coatings are an interesting way to save costs and time associated with these monitoring operations. This paper describes the successful preparation of a reversible piezochromic coating for impacts detection on composite substrates. It results from the incorporation of piezochromic pigments into a hybrid organic-inorganic matrix. It has been optimized by studying and quantifying their piezochromic behavior by UV-visible spectroscopy. It revealed that the piezochromic properties of the sensitive coating and the pigments alone are quite different and ruled by the hardness of the film. The obtained sensitivity and threshold pressure are determined to be 28% GPa−1 and 0.2 GPa respectively.< Réduire

Mots clés en anglais

Nanocomposites

Functional coating

Piezochromic

DOI

http://dx.doi.org/10.1016/j.matlet.2019.06.045

Project ANR

Revêtements Piézochromes Réversibles pour la Détection d'Impacts sur Supports Composites - ANR-13-RMNP-0011

Origine

Importé de hal

Unités de recherche

Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB) - UMR 5026